But this only applies to Sitecore version 8, where in Sitecore 9 you should leverage the sessionIDManagerType which allows you to declare the desired provider by changing the mode to “Custom” and adding customProvider=”redis” to the sessionState tag. Doing so not only allows you to use Redis as your Private SessionState Provider, but since the sessionIDManagerType allows you to declare your desired Provider choice, you can leave the other entries in for mssql or mongo (note: to restore to an InProc SessionState, you would change the mode to “InProc”).